👉 In military terminology, a "lieutenant" refers to a rank within the ranks of a military organization. It is often used to denote the rank of an officer who holds other ranks in that organization. The term "Lieutenant" can also be applied to a subordinate or junior officer who serves as a liaison between higher-ranking officers and their subordinates. For example, in the United States Army, a lieutenant colonel would hold the rank of captain, while a major general would hold the rank